.tien-savings-calculator {
  --tsc-blue: #3767D5;
  --tsc-blue-dark: #2D56B5;
  --tsc-green: #399B53;
  --tsc-yellow: #FFDE59;
  --tsc-text: #172033;
  --tsc-muted: #5F6775;
  --tsc-border: #DDE4EF;
  --tsc-bg: #F6F8FC;
  --tsc-blue-soft: #EEF3FF;
  --tsc-green-soft: #EEF8F1;
  --tsc-yellow-soft: #FFF9D9;
  --tsc-danger: #B42318;
  color: var(--tsc-text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  margin: 28px 0;
}

.tien-savings-calculator *,
.tien-savings-calculator *::before,
.tien-savings-calculator *::after {
  box-sizing: border-box;
}

.tien-savings-calculator button,
.tien-savings-calculator input,
.tien-savings-calculator select {
  font: inherit;
}

.tsc-shell {
  background: linear-gradient(145deg, #ffffff 0%, #f7f9ff 48%, #f4fbf6 100%);
  border: 1px solid var(--tsc-border);
  border-radius: 24px;
  box-shadow: 0 18px 55px rgba(31, 53, 88, 0.10);
  overflow: hidden;
}

.tsc-header {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 30px 32px 24px;
  background:
    radial-gradient(circle at 95% 10%, rgba(255, 222, 89, 0.32), transparent 30%),
    radial-gradient(circle at 78% 100%, rgba(57, 155, 83, 0.12), transparent 32%);
}

.tsc-eyebrow {
  margin: 0 0 8px;
  color: var(--tsc-blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
}

.tsc-title {
  margin: 0;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.12;
  letter-spacing: -.03em;
}

.tsc-subtitle {
  max-width: 680px;
  margin: 12px 0 0;
  color: var(--tsc-muted);
  font-size: 16px;
  line-height: 1.65;
}

.tsc-trust {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  justify-content: flex-end;
  gap: 8px;
  max-width: 330px;
}

.tsc-trust span {
  padding: 8px 11px;
  border: 1px solid rgba(55, 103, 213, .18);
  border-radius: 999px;
  background: rgba(255,255,255,.88);
  color: var(--tsc-blue-dark);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.tsc-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr);
  gap: 22px;
  padding: 0 32px 28px;
}

.tsc-panel {
  border: 1px solid var(--tsc-border);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 10px 30px rgba(31, 53, 88, .06);
}

.tsc-form-panel {
  padding: 22px;
}

.tsc-tabs {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  margin-bottom: 20px;
  border-radius: 12px;
  background: var(--tsc-bg);
}

.tsc-tab {
  border: 0;
  border-radius: 9px;
  padding: 9px 16px;
  background: transparent;
  color: var(--tsc-muted);
  font-weight: 750;
  cursor: pointer;
}

.tsc-tab.is-active {
  background: #fff;
  color: var(--tsc-blue);
  box-shadow: 0 4px 14px rgba(31, 53, 88, .08);
}

.tsc-form {
  display: grid;
  gap: 18px;
}

.tsc-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.tsc-field {
  display: grid;
  gap: 8px;
}

.tsc-field label {
  font-size: 14px;
  font-weight: 750;
}

.tsc-field small {
  color: var(--tsc-muted);
  font-size: 12px;
}

.tsc-input-wrap,
.tsc-combo {
  display: flex;
  align-items: stretch;
  min-height: 52px;
  border: 1px solid var(--tsc-border);
  border-radius: 12px;
  background: #fff;
  transition: border-color .2s ease, box-shadow .2s ease;
  overflow: hidden;
}

.tsc-input-wrap:focus-within,
.tsc-combo:focus-within {
  border-color: var(--tsc-blue);
  box-shadow: 0 0 0 4px rgba(55, 103, 213, .12);
}

.tsc-input-wrap input,
.tsc-combo input,
.tsc-combo select,
.tsc-field > input,
.tsc-field > select {
  width: 100%;
  min-height: 52px;
  border: 1px solid var(--tsc-border);
  border-radius: 12px;
  background: #fff;
  color: var(--tsc-text);
  padding: 0 14px;
  outline: 0;
}

.tsc-input-wrap input {
  border: 0;
  border-radius: 0;
}

.tsc-combo input,
.tsc-combo select {
  border: 0;
  border-radius: 0;
}

.tsc-combo select {
  width: 42%;
  border-left: 1px solid var(--tsc-border);
  background: var(--tsc-bg);
}

.tsc-suffix {
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  border-left: 1px solid var(--tsc-border);
  background: var(--tsc-bg);
  color: var(--tsc-muted);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.tsc-field > input:focus,
.tsc-field > select:focus {
  border-color: var(--tsc-blue);
  box-shadow: 0 0 0 4px rgba(55, 103, 213, .12);
}

.tsc-quick-amounts,
.tsc-term-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.tsc-quick-amounts button,
.tsc-term-chips button {
  border: 1px solid var(--tsc-border);
  border-radius: 999px;
  padding: 7px 10px;
  background: #fff;
  color: var(--tsc-muted);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.tsc-quick-amounts button:hover,
.tsc-term-chips button:hover {
  border-color: var(--tsc-blue);
  color: var(--tsc-blue);
  background: var(--tsc-blue-soft);
}

.tsc-advanced {
  display: grid;
  gap: 18px;
  padding: 16px;
  border-radius: 14px;
  background: var(--tsc-blue-soft);
}

.tsc-advanced[hidden] {
  display: none;
}

.tsc-error {
  min-height: 0;
  color: var(--tsc-danger);
  font-size: 13px;
  font-weight: 700;
}

.tsc-actions {
  display: flex;
  gap: 10px;
}

.tsc-primary,
.tsc-secondary,
.tsc-result-actions button {
  min-height: 48px;
  border-radius: 12px;
  padding: 0 18px;
  font-weight: 800;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}

.tsc-primary {
  flex: 1;
  border: 1px solid var(--tsc-blue);
  background: var(--tsc-blue);
  color: #fff;
  box-shadow: 0 10px 22px rgba(55, 103, 213, .24);
}

.tsc-primary:hover {
  background: var(--tsc-blue-dark);
  transform: translateY(-1px);
}

.tsc-secondary,
.tsc-result-actions button {
  border: 1px solid var(--tsc-border);
  background: #fff;
  color: var(--tsc-text);
}

.tsc-secondary:hover,
.tsc-result-actions button:hover {
  border-color: var(--tsc-blue);
  color: var(--tsc-blue);
}

.tsc-result-panel {
  display: grid;
  gap: 18px;
  padding: 18px;
  background: linear-gradient(180deg, var(--tsc-blue-soft), #fff 58%);
}

.tsc-book {
  overflow: hidden;
  border: 1px solid rgba(55, 103, 213, .18);
  border-radius: 18px;
  background: #fff;
}

.tsc-book-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  padding: 18px 20px;
  background: var(--tsc-blue);
  color: #fff;
}

.tsc-book-head span {
  display: block;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .09em;
  opacity: .85;
}

.tsc-book-head strong {
  display: block;
  margin-top: 4px;
  font-size: 16px;
}

.tsc-book-badge {
  border-radius: 999px;
  padding: 7px 10px;
  background: var(--tsc-yellow);
  color: #594700;
  font-size: 12px;
  font-weight: 850;
}

.tsc-result-summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  padding: 20px;
}

.tsc-result-main,
.tsc-result-total {
  border-radius: 14px;
  padding: 16px;
}

.tsc-result-main {
  background: var(--tsc-green-soft);
}

.tsc-result-total {
  width: 100%;
  background: var(--tsc-yellow-soft);
  box-shadow: inset 4px 0 0 var(--tsc-yellow);
}

.tsc-result-main span,
.tsc-result-total span {
  display: block;
  color: var(--tsc-muted);
  font-size: 12px;
  font-weight: 750;
}

.tsc-result-main strong,
.tsc-result-total strong {
  display: block;
  max-width: 100%;
  margin-top: 5px;
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.12;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.tsc-result-main strong {
  color: var(--tsc-green);
}

.tsc-result-total strong {
  color: var(--tsc-text);
}

.tsc-result-main small {
  display: block;
  min-height: 18px;
  margin-top: 7px;
  color: var(--tsc-muted);
  font-size: 12px;
}

.tsc-result-details {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--tsc-border);
}

.tsc-result-details > div {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--tsc-border);
}

.tsc-result-details > div:nth-child(odd) {
  border-right: 1px solid var(--tsc-border);
}

.tsc-result-details span {
  color: var(--tsc-muted);
  font-size: 12px;
}

.tsc-result-details strong {
  text-align: right;
  font-size: 13px;
}

.tsc-chart-wrap {
  display: grid;
  grid-template-columns: 150px 1fr;
  align-items: center;
  gap: 22px;
  padding: 4px 8px;
}

.tsc-donut {
  --principal-deg: 360deg;
  position: relative;
  width: 140px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: conic-gradient(var(--tsc-blue) 0 var(--principal-deg), var(--tsc-green) var(--principal-deg) 360deg);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.55);
}

.tsc-donut::after {
  content: "";
  position: absolute;
  inset: 20px;
  border-radius: 50%;
  background: #fff;
}

.tsc-donut-center {
  position: absolute;
  z-index: 1;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
}

.tsc-donut-center strong {
  font-size: 22px;
}

.tsc-donut-center span {
  color: var(--tsc-muted);
  font-size: 11px;
}

.tsc-legend {
  display: grid;
  gap: 10px;
}

.tsc-legend span {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--tsc-muted);
  font-size: 13px;
  font-weight: 700;
}

.tsc-legend i {
  width: 12px;
  height: 12px;
  border-radius: 4px;
}

.tsc-legend .is-principal { background: var(--tsc-blue); }
.tsc-legend .is-interest { background: var(--tsc-green); }

.tsc-result-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.tsc-result-actions button {
  min-height: 42px;
  font-size: 13px;
}

.tsc-formula-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin: 0 32px 18px;
  padding: 18px;
  border: 1px solid rgba(55,103,213,.16);
  border-radius: 16px;
  background: var(--tsc-blue-soft);
}

.tsc-formula-icon {
  display: grid;
  place-items: center;
  flex: 0 0 46px;
  height: 46px;
  border-radius: 13px;
  background: var(--tsc-blue);
  color: #fff;
  font-weight: 900;
}

.tsc-formula-card strong {
  display: block;
  margin-bottom: 5px;
}

.tsc-formula-card p {
  margin: 0;
  color: var(--tsc-muted);
  line-height: 1.6;
}

.tsc-note {
  margin: 0 32px 30px;
  border: 1px solid rgba(255, 222, 89, .9);
  border-radius: 16px;
  background: var(--tsc-yellow-soft);
  overflow: hidden;
}

.tsc-note summary {
  padding: 15px 18px;
  cursor: pointer;
  font-weight: 800;
}

.tsc-note p {
  margin: 0;
  padding: 0 18px 18px;
  color: var(--tsc-muted);
  line-height: 1.7;
}

@media (max-width: 980px) {
  .tsc-header {
    display: grid;
  }

  .tsc-trust {
    justify-content: flex-start;
    max-width: none;
  }

  .tsc-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .tsc-shell {
    border-radius: 18px;
  }

  .tsc-header,
  .tsc-grid {
    padding-left: 16px;
    padding-right: 16px;
  }

  .tsc-header {
    padding-top: 22px;
  }

  .tsc-grid {
    gap: 16px;
    padding-bottom: 18px;
  }

  .tsc-form-panel,
  .tsc-result-panel {
    padding: 14px;
  }

  .tsc-row,
  .tsc-result-summary,
  .tsc-result-actions {
    grid-template-columns: 1fr;
  }

  .tsc-result-details {
    grid-template-columns: 1fr;
  }

  .tsc-result-details > div:nth-child(odd) {
    border-right: 0;
  }

  .tsc-chart-wrap {
    grid-template-columns: 1fr;
    justify-items: center;
  }

  .tsc-legend {
    grid-template-columns: 1fr 1fr;
  }

  .tsc-actions {
    flex-direction: column;
  }

  .tsc-primary,
  .tsc-secondary {
    width: 100%;
  }

  .tsc-formula-card,
  .tsc-note {
    margin-left: 16px;
    margin-right: 16px;
  }
}

@media print {
  body * {
    visibility: hidden !important;
  }

  .tien-savings-calculator,
  .tien-savings-calculator * {
    visibility: visible !important;
  }

  .tien-savings-calculator {
    position: absolute;
    inset: 0;
    width: 100%;
    margin: 0;
  }

  .tsc-form-panel,
  .tsc-result-actions,
  .tsc-tabs,
  .tsc-trust,
  .tsc-formula-card,
  .tsc-note {
    display: none !important;
  }

  .tsc-grid {
    display: block;
    padding: 0 24px 24px;
  }

  .tsc-result-panel {
    box-shadow: none;
  }
}